Slipping, now with 20% more ecs (#4310)

* Slipping, now with 20% more ecs

* vereview

Content.Shared/Slippery/SlipperySystem.cs

@@ -1,19 +0,0 @@
-using System.Linq;
-using JetBrains.Annotations;
-using Robust.Shared.GameObjects;
-
-namespace Content.Shared.Slippery
-{
-    [UsedImplicitly]
-    public class SlipperySystem : EntitySystem
-    {
-        /// <inheritdoc />
-        public override void Update(float frameTime)
-        {
-            foreach (var slipperyComp in ComponentManager.EntityQuery<SlipperyComponent>().ToArray())
-            {
-                slipperyComp.Update();
-            }
-        }
-    }
-}